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CONSOLIDATED STATEMENTS OF CASHFLOWS ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 CNY (¥) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 CNY (¥) | Dec. 31, 2017 CNY (¥)
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |  |
Net loss | ¥ (395,165) | $ (56,763) | ¥ (926,950) | ¥ (918,714)
Adjustments to reconcile net loss to net cash generated from operating activities: |  |  |  |
Share-based compensation | 2,970 | 427 | 3,851 | 288,763
Depreciation and amortization | 37,223 | 5,347 | 25,778 | 8,109
Loss on disposal of property and equipment | 1,824 | 262 |  | 120
Loss/(gain) from equity method investments | 136 | 20 | (1,710) | 4,890
Changes in operating assets and liabilities: |  |  |  |
Prepaid expenses and other current assets | (39,769) | (5,712) | (92,291) | (30,222)
Deferred costs | (121,668) | (17,476) | (229,007) | (73,032)
Right-of-use asset | (38,805) | (5,574) |  |
Deferred tax assets | (85,513) | (12,283) |  |
Other non-current assets | 3,446 | 495 | (4,286) | (7,480)
Accrued expenses and other current liabilities | 25,216 | 3,622 | 214,697 | 164,245
Deferred revenue | (57,255) | (8,224) | 1,175,597 | 1,382,859
Lease liability | 49,253 | 7,075 |  |
Deferred tax liabilities | 87,954 | 12,634 |  |
Other non-current liabilities | (3,394) | (488) | 14,864 |
Net cash generated from/(used in) operating activities | (533,547) | (76,638) | 180,543 | 819,538
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |  |
Payment for equity method investments | (10,153) | (1,458) | (25,000) | (8,190)
Purchase of short-term investments | (2,108,820) | (302,913) | (4,352,103) | (2,139,097)
Proceeds from maturity of short-term investments | 2,905,788 | 417,390 | 3,708,810 | 1,931,027
Acquisition of property and equipment | (24,756) | (3,556) | (517,763) | (398,190)
Acquisition of intangible assets | (780) | (112) | (665) | (746)
Consideration paid for a business acquisition, net of cash received |  |  |  | (699)
Proceeds from disposal of property and equipment | 652 | 94 |  |
Loan to employees | (33,085) | (4,752) |  |
Repayment of loan to employees | 700 | 101 |  |
Net cash (used in) / generated from investing activities | 729,546 | 104,794 | (1,186,721) | (615,895)
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |  |
Amounts due from related parties |  |  | 253,672 | 7,944
Capital contribution from Series B and B+ convertible redeemable preferred shareholders |  |  |  | 732,709
Capital contribution from a noncontrolling shareholder |  |  |  | 200
Capital withdrew from Series A convertible redeemable preferred shareholders |  |  |  | (285,078)
Capital withdrew from equity shareholders |  |  |  | (30,000)
Repurchase of equity from shareholders |  |  |  | (41,303)
Cash dividend to a Series A convertible redeemable preferred shareholder |  |  |  | (43,000)
Proceeds from initial public offering, net of issuance cost of 80,128 |  |  | 1,109,517 |
Payment for share repurchase | (31,650) | (4,546) | (33,971) |
Proceeds from bank loans |  |  | 260,000 |
Repayment of bank loans | (32,500) | (4,668) | (1,875) |
Net cash generated from / (used in) financing activities | (64,150) | (9,214) | 1,587,343 | 341,472
Effect of exchange rate changes | 21,567 | 3,095 | 108,186 | (8,759)
Net increase in cash and cash equivalents | 153,416 | 22,037 | 689,351 | 536,356
Cash and cash equivalents at beginning of the year | 1,248,810 | 179,380 | 559,459 | 23,103
Cash and cash equivalents at end of the year | 1,402,226 | 201,417 | 1,248,810 | 559,459
Supplemental schedule of non-cash investing activities: |  |  |  |
Payables for leasehold improvement and intangible assets | 6,818 | 979 | 7,194 | 2,180
Payables to acquire buildings | 61,540 | 8,840 | 61,540 | ¥ 240,390
Supplemental disclosure of cash flow information: |  |  |  |
Interest paid | ¥ 15,316 | $ 2,200 | ¥ 1,099 |

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash inflow from bank borrowing during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with the amount received from entity's first offering of stock to the public. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The cash inflow from maturities, prepayments, calls and collections of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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